Posted January 12, 20232 yr Anyone that did tests to see the voltages on the pv lines ? While the inverter is using utility to power the house and charge the batteries at night time I have noticed that the voltages at the PV input to the inverter is 2 to 5 volts dc--From Pos or Neg to earth it is 240v dc and ac--this is when the pv panels are disconnected--I have a Aluzink roof and the panels are earthed to the roof and the roof to a earth spike -- On the PV combiner box the earth from the SPD goes to another earth spike about 20 meters away Edited January 12, 20232 yr by zs1ssm Forgot to mension at night
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